12122202231 has 16 divisors (see below), whose sum is σ = 17972486400. Its totient is φ = 8075317464.

The previous prime is 12122202193. The next prime is 12122202299. The reversal of 12122202231 is 13220222121.

12122202231 is a `hidden beast` number, since 1 + 212 + 220 + 2 + 231 = 666.

It is not a de Polignac number, because 12122202231 - 2¹⁴ = 12122185847 is a prime.

It is a super-2 number, since 2×12122202231² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12122202931) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134581 + ... + 205806.

It is an arithmetic number, because the mean of its divisors is an integer number (1123280400).

Almost surely, 2^12122202231 is an apocalyptic number.

12122202231 is a deficient number, since it is larger than the sum of its proper divisors (5850284169).

12122202231 is a wasteful number, since it uses less digits than its factorization.

12122202231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341715 (or 341709 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 12122202231 its reverse (13220222121), we get a palindrome (25342424352).

The spelling of 12122202231 in words is "twelve billion, one hundred twenty-two million, two hundred two thousand, two hundred thirty-one".